On Thursday, Houston Texans coach Gary Kubiak commented on our man On The Fringe Boomer Grigsby‘s progress in training camp, saying, “Boomer has done some good things. (FB) Vonta (Leach) had some family issues and he (Grigsby) got a lot of reps and took advantage of those reps. He has proved to us that he fits what we do, and now it’s time for him to go prove it on the field.”

Grigsby will get an opportunity to prove it on the field when the Texans take on his former team, the Kansas City Chiefs, on Saturday at 8 p.m. ET. A replay of the game can be seen on NFL Network on Sunday at 10 a.m. ET.

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What is On The Fringe?

More than 2,500 players will compete for roster spots in NFL training camps this year. For some, camp is a formality; their jobs are secure. For others, each practice is a fight for their NFL life.

Over the next few months, NFL.com will follow five such players “On The Fringe” of the NFL, sharing their stories, their progress and their setbacks. All have until Aug. 31 — or Sept. 4, if they're lucky — to make their case.